单词	置换图
释义	置换图permutation graph
随便看	thirteens thirteenth thirteenth amendment thirteenth chord thirteenth chromatic thirteenth dominant thirteenthly thirteenths thirties thirtieth thirtieth birthday thirtieth highest annual hourly volume thirtieths thirty thirty blows with the cudgel thirty days notice thirty-day wonder thirty degree piezoelectric cut thirty-degree piezoelectric cut｛=y-cut｝ thirty degrees make a sign, in astronomy thirty-eight thirty-first thirty first of may thirty-first of may thirty-five